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the seller said they didn't add any nitrogen fertilizer into the soil for seedling period. And I was wrong for using this soil so long, almost more than 20 days. The symptom is like nitrogen deficiency, lower leaves turn yellow and new leaves seem all right but today! It's pale yellow the...

Is this nitrogen deficiency and over-water? A moment ago I just used some fertilizer to save them:-( these pics were taken yesterday old leaves turn yellow and new leaves seem green.

From yesterday, I have chosen to use 16/8 is it correct? light them from 9 a.m. to 12 p.m. Then I go to sleep. Sunny days are quite rare in March here, almost a whole cloudy and rainy month.

When I woke up this morning, to my surprise it's sunny outside,haha. Just let these young ladies to take a sun bath

At present, I use a small carton. I have a grow tent but it's too large. :bigjoint:Please ignore the humble environment automatically.

Now I use 24h light, is it appropriate? The second pair of true leaves is emerging and after the third pair of true leaves appear, I'll take 16/8, is it correct? Then clone and transplant in late April.

There's no doubt that I'm willing to plant different pot strains as many as possible, 1000-5000 seeds, really a big budget, it will cost a lot. I used to have two Afghan Kush Regular seeds, both of them were dead before sprouting. Each Afghan Kush costed me nearly $8. BTW, if you can provide...

:lol::lol::lol::bigjoint:I guess you must be high when you replied to my post, hahahahaha. Tooooo far to get there, it's a pity.

Did you see that LED light above? I'm going to use that when the third or fourth pair of true leaves appear.

Thank you. In early April, I will take 16/8 for my plants, at the moment I choose 24h light. I find that my plants grow slowly, it has been 10 days after germination. The soil is peat soil, I don't know why it's too slow. How to deal with? Add some lights? I just have a thermometer and I haven'...

Haha, I'm on the Honshu Island, the biggest island of Japan. Welcome to Japan.

So, what kind of light and dark ratio do you prefer during the seedling stage? Is it proper to use 20/4 for them?

A lot of my friends recommended using 24h light until the 3rd pair of leaves appear. Then use 16/8 during the veg time.

really? My four plants are 12/12,not auto-flowering strains. It's just 4-5days after sprouting, it's impossible to flower....

The temperature is 28.8°C or 83.84°F ...............I feel it's a little too warm...

1.Currently, the most serious problem is the weather. It's spring season here but the weather is always rainy, also cloudy and humid, endless rain everyday. But how to calculate the hours of light? I have to say that I'm worried about the light very much! Those mountains are very shady. 2.As...

:bigjoint: two links for a deeper reading: http://en.wikipedia.org/wiki/Samurai http://en.wikipedia.org/wiki/Ninja

oh, SORRY, I forget to use the full size picture. As you can see, those four little babies are growing in a CFL environment. I hope everything is going well, btw, the soil on the mountains is a bit acidic, how to deal with that? Using hydrated lime? I have searched for some scholar papers, the...